Z0221500ZCO Zilog, Z0221500ZCO Datasheet - Page 54

• Manufacturer Part Number: Z0221500ZCO
• Description: Z02215 ONE-CHIP MODEM EVAL KIT
• Manufacturer: Zilog

Specifications of Z0221500ZCO

• Main Purpose: Telecom, Modem
• Utilized Ic / Part: Z02215
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Using The AT Command Set
Mnemonic Name
\Q
Flow Control
Function and Description
The \Q option specifies a flow-control character between the
modem and the terminal when \N0 has been selected. Flow
control prevents data from being lost by stopping the terminal
from sending data to the modem too quickly. The modem issues a
flow-control character to the terminal to inform it to stop data
transfer. The modem releases flow control when it is able to
receive more data by sending a flow-control character to resume
data transfer.
Similarly, the terminal can use flow control to prevent data loss
caused by the modem sending data too quickly to the terminal.
Flow control does not work unless both the terminal and the
modem are configured to use the same type of flow control.
\Q0
\Q1
\Q2
\Q3
PRELIMINARY
This option disables flow control.
This option enables XON/XOFF flow control. In this
mode, either the modem or terminal may send an
XOFF character to tell the other to stop sending data.
An XON character is sent to resume the transmission
of data.
This option enables CTS flow control. The modem
turns its CTS signal OFF to stop the terminal from
sending data to the modem and turns its CTS signal on
to allow the terminal to resume sending data.
This option enables RTS/CTS flow control. In this
mode, the modem uses its CTS signal as described in
\Q2 . The terminal turns its RTS signal OFF to stop the
modem from sending data to the terminal and turns its
RTS signal ON to allow the modem to resume sending
data. This value is the default value.
Evaluation Board User Manual
Z02215 Single-Chip Modem
UM002304-0802
48